update wf2

Author: polsala

.github/workflows/install_test.yml

@@ -43,8 +43,15 @@ jobs:
                 cd /usr/bin
                 sudo ln -s /usr/bin/pip2 ./pip
 
+            - name: Set up virtual environment
+              run: |
+                python -m pip install --upgrade pip
+                pip install virtualenv
+                python -m virtualenv venv
+
             - name: Install package
               run: |
                 sudo apt-get install libxml2-dev libxmlsec1-dev libxmlsec1-openssl opensc softhsm2 libengine-pkcs11-openssl
+                source venv/bin/activate
                 pip install --upgrade pip setuptools wheel build
                 python setup.py install